great info. So it turns out the client wants to do 400+ shirts anyway, so screenprinting is looking likely. This one is definitely going to need to be contracted out.
What would contract pricing be (roughly) for a job like this? Assume 400 shirts. Full Back would need some kind of barrier base for the camo, cmyk to hit all the rainbow colors the cheapest I think, and needing a top white and maybe a spot orange from the looks of the art. Front Left Chest could be 3/4/5 color front: barrier base, top white (maybe not needed), black, orange, peach (could be made with the orange easily).
Edit: I can post in member to member instead since this is getting off topic a bit.